The design of the Series 1 version packs are parodies of the chip brands Doritos and Munchos, while the Series 2 packs are modeled after sour cream and onion flavored potato chip bags.

Some Series 1 packs were previously branded as "Crunchos" in early Toy Fair videos, and were erroneously labeled as 12 packs, which was later used for Series 3. These versions also used the prototype design of Stinky Cheese, including the irises that were eventually removed for the franchise.

In each blind bag, there is an ultra rare and at least one special edition Grossery, some times two special edition Grosseries, one visible and one hidden. However, one of these has the chance of being replaced by a limited edition.

However, beginning in Series 3, the Large Packs now contain either one ultra rare and a special edition, two ultra rares, or two special editions hidden.